// Copyright 2023 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

#pragma once
#include "pw_bluetooth_sapphire/internal/host/att/att.h"
#include "pw_bluetooth_sapphire/internal/host/common/byte_buffer.h"
#include "pw_bluetooth_sapphire/internal/host/common/packet_view.h"

namespace bt::att {

// Utilities for processing ATT protocol Packets.

class PacketReader : public PacketView<Header> {
 public:
  explicit PacketReader(const ByteBuffer* buffer);

  inline OpCode opcode() const { return header().opcode; }
};

class PacketWriter : public MutablePacketView<Header> {
 public:
  // Constructor writes |opcode| into |buffer|.
  PacketWriter(OpCode opcode, MutableByteBuffer* buffer);
};

}  // namespace bt::att
